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294810

2-Butanol

anhydrous, 99.5%

Synonym(s):

sec-Butyl alcohol

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About This Item

Linear Formula:
CH3CH2CH(OH)CH3
CAS Number:
78-92-2
Molecular Weight:
74.12
UNSPSC Code:
12352001
NACRES:
NA.21
PubChem Substance ID:
57648374
EC Number:
201-158-5
Beilstein/REAXYS Number:
773649
MDL number:
MFCD00004569
Assay:
99.5%
Grade:
anhydrous
Bp:
98 °C (lit.)
Vapor pressure:
12.5 mmHg ( 20 °C)
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grade

anhydrous

Quality Segment

100

vapor density

2.6 (vs air)

vapor pressure

12.5 mmHg ( 20 °C)

assay

99.5%

form

liquid

autoignition temp.

761 °F

expl. lim.

9.8 %

impurities

<0.005% water

evapn. residue

<0.0003%

refractive index

n20/D 1.397 (lit.)

bp

98 °C (lit.)

mp

−115 °C (lit.)

density

0.808 g/mL at 25 °C (lit.)

SMILES string

CCC(C)O

InChI

1S/C4H10O/c1-3-4(2)5/h4-5H,3H2,1-2H3

InChI key

BTANRVKWQNVYAZ-UHFFFAOYSA-N

General description

Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal™ closure combines an advanced plug-style liner with an airtight elastomer and crimp cap design to ensure consistent product integrity. Three unique liner materials provide optimal chemical compatibility across a broad range of solvents. Sure/Seal™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.

Application

Anhydrous solvents in Sure/Seal™ packaging are essential wherever water contamination would compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide, oligonucleotide, and pharmaceutical synthesis.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

target_organs

Central nervous system, Respiratory system

Storage Class

3 - Flammable liquids

flash_point_f

80.6 °F - closed cup

flash_point_c

27 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

78-92-2

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